Computers with an embedded wireless system must have the radio removed or otherwise physically disable the radio hardware before the computer is used to transfer, receive, store, or process classified information, unless the wireless system has been certified via the DoD Commercial Solutions for Classified (CSfC) program.

With the increasing popularity of wireless networking, most laptops have wireless NICs (network interface cards) installed on the laptop motherboard. Although the system administrator may disable these embedded NICs, the user may purposefully or accidentally enable the device. These devices may also inadvertently transmit ambient sound or electronic signals. Therefore, simply disabling the transmit capability is an inadequate solution for computers processing classified information. In addition, embedded wireless cards do not meet DoD security requirements for classified wireless usage.